Excellent recoveries of palladium, platinum and rhodium from downstream processing tests
Blackstone Minerals Limited (“Blackstone†or the “Companyâ€) is pleased to announce that the preliminary hydrometallurgical testing work performed by Simulus Engineers on the Pressure Oxidation Residues (POX) of the Pre-feasibility Study (PFS) ) demonstrated excellent recoveries of Platinum group elements (PGE) including palladium, platinum and rhodium using a conventional scheme (see Table 1 and Figure 1). • Concentrate the residues… Continued
Blackstone Minerals Limited (“Blackstone†or the “Companyâ€) is pleased to announce that the preliminary hydrometallurgical testing work performed by Simulus Engineers on the Pressure Oxidation Residue (POX) of the Pre-feasibility Study (PFS) demonstrated excellent recoveries of platinum group elements (PGE) including palladium, platinum and rhodium using a conventional scheme (see Table 1 and Figure 1).
• Concentrated tailings samples were tested and found suitable for chlorination leaching, adding additional value to Blackstone’s downstream business unit (DBU).
• The qualities of PGE cited below in Table 1 are difficult to recover in a conventional pyrometallurgical process. The Blackstone DBU hydrometallurgical process allows economical recovery of PGE from concentrates with PGE concentrations below typical payability limits, due to the low losses in the POX process.
• The positive results indicate the potential for economic recovery of EMPs. Test work is underway to further optimize these results and, in parallel, studies are continuing with the aim of incorporating the PGE recovery circuit into the DBU pre-feasibility study.